Most external hard drives you can pick up only support one interface (e.g. USB). But if you have Macs and PCs in your home, you may need to have a hard drive that offers USB and FireWire support. The MiniPro 1TB Hard Drive is not only portable but supports FireWire 800 and USB 3.0. It is bus powered but does include an AC adapter. The Aluminum housing provides better heat dissipation & protection. This cool hard drive has something to offer to Mac and Windows users.